NCERT Solutions for Class 11 History Chapter 1 From the Beginning of Time
NCERT Solutions for Class 11 History Chapter 1 From the Beginning of Time Class 11 History Chapter 1 NCERT Textbook Questions Solved Question 1. Look at the diagram showing the positive feedback mechanism on page 13. (See NCERT Textbook). Can you list the inputs that went into tool making? What were the processes that were strengthened by tool-making? Answer: After going through the positive feedback mechanism following points can be inferred: (a) Inputs that helped in tool making: Increased brain size and capacity of brain Upright walking Visual surveillance long distance Walking while foraging and hunting. (b) The processes that were strengthened by tool making: Upright walking Increase in size and capacity of brain Visual surveillance, long distance walking while foraging and hunting. Question 2. Humans and mammals such as monkeys and apes have certain similarities in behaviour and anatomy. This indicates that humans have possibly evolved from the . apes. List these resemblances in ...